/**
 * KDS Styles
 * Kitchen Display System specific styles
 */

/* =============================================
   BASE STYLES
   ============================================= */

:root {
  --kds-bg: #111827;
  --kds-surface: #1f2937;
  --kds-surface-hover: #374151;
  --kds-border: #374151;
  --kds-text: #f9fafb;
  --kds-text-muted: #9ca3af;
  --kds-primary: #8b5cf6;
  --kds-primary-hover: #7c3aed;

  /* Timer colors */
  --timer-normal: #10b981;
  --timer-warning: #f59e0b;
  --timer-critical: #ef4444;

  /* Priority colors */
  --priority-rush: #ef4444;
  --priority-vip: #8b5cf6;

  /* Status colors */
  --status-new: #3b82f6;
  --status-in-progress: #f59e0b;
  --status-ready: #10b981;
  --status-completed: #6b7280;

  /* Color coding */
  --color-red: rgba(239, 68, 68, 0.15);
  --color-orange: rgba(249, 115, 22, 0.15);
  --color-yellow: rgba(234, 179, 8, 0.15);
  --color-green: rgba(34, 197, 94, 0.15);
  --color-blue: rgba(59, 130, 246, 0.15);
  --color-purple: rgba(139, 92, 246, 0.15);
  --color-pink: rgba(236, 72, 153, 0.15);
  --color-sky: rgba(14, 165, 233, 0.15);
  --color-indigo: rgba(99, 102, 241, 0.15);
}

/* =============================================
   THEME: Light
   ============================================= */
[data-theme="light"] {
  --kds-bg: #f3f4f6;
  --kds-surface: #ffffff;
  --kds-surface-hover: #f9fafb;
  --kds-border: #e5e7eb;
  --kds-text: #1f2937;
  --kds-text-muted: #6b7280;
  --kds-primary: #7c3aed;
  --kds-primary-hover: #6d28d9;

  /* Adjusted color coding for light background */
  --color-red: rgba(239, 68, 68, 0.12);
  --color-orange: rgba(249, 115, 22, 0.12);
  --color-yellow: rgba(234, 179, 8, 0.12);
  --color-green: rgba(34, 197, 94, 0.12);
  --color-blue: rgba(59, 130, 246, 0.12);
  --color-purple: rgba(139, 92, 246, 0.12);
  --color-pink: rgba(236, 72, 153, 0.12);
  --color-sky: rgba(14, 165, 233, 0.12);
  --color-indigo: rgba(99, 102, 241, 0.12);
}

/* =============================================
   THEME: High Contrast
   ============================================= */
[data-theme="high-contrast"] {
  --kds-bg: #000000;
  --kds-surface: #0a0a0a;
  --kds-surface-hover: #1a1a1a;
  --kds-border: #333333;
  --kds-text: #ffffff;
  --kds-text-muted: #cccccc;
  --kds-primary: #a78bfa;
  --kds-primary-hover: #8b5cf6;

  /* High contrast timer colors */
  --timer-normal: #00ff00;
  --timer-warning: #ffff00;
  --timer-critical: #ff0000;

  /* High contrast status colors */
  --status-new: #00bfff;
  --status-in-progress: #ffff00;
  --status-ready: #00ff00;
  --status-completed: #888888;

  /* High contrast color coding */
  --color-red: rgba(255, 0, 0, 0.25);
  --color-orange: rgba(255, 165, 0, 0.25);
  --color-yellow: rgba(255, 255, 0, 0.25);
  --color-green: rgba(0, 255, 0, 0.25);
  --color-blue: rgba(0, 191, 255, 0.25);
  --color-purple: rgba(167, 139, 250, 0.25);
  --color-pink: rgba(255, 105, 180, 0.25);
  --color-sky: rgba(135, 206, 235, 0.25);
  --color-indigo: rgba(138, 43, 226, 0.25);
}

/* =============================================
   THEME: Kitchen Bright
   ============================================= */
[data-theme="kitchen-bright"] {
  --kds-bg: #ecfdf5;
  --kds-surface: #ffffff;
  --kds-surface-hover: #f0fdf4;
  --kds-border: #d1fae5;
  --kds-text: #064e3b;
  --kds-text-muted: #047857;
  --kds-primary: #059669;
  --kds-primary-hover: #047857;

  /* Bright, easy-to-see timer colors */
  --timer-normal: #059669;
  --timer-warning: #d97706;
  --timer-critical: #dc2626;

  /* Adjusted status colors for bright theme */
  --status-new: #2563eb;
  --status-in-progress: #d97706;
  --status-ready: #059669;
  --status-completed: #6b7280;
}

/* =============================================
   FONT SIZE SCALING
   ============================================= */
[data-font-size="small"] {
  font-size: 14px;
}

[data-font-size="small"] .order-number,
[data-font-size="small"] .order-ticket-number {
  font-size: 18px;
}

[data-font-size="small"] .order-timer {
  font-size: 16px;
}

[data-font-size="small"] .item-name {
  font-size: 13px;
}

[data-font-size="medium"] {
  font-size: 16px;
}

[data-font-size="large"] {
  font-size: 18px;
}

[data-font-size="large"] .order-number,
[data-font-size="large"] .order-ticket-number {
  font-size: 26px;
}

[data-font-size="large"] .order-timer {
  font-size: 24px;
}

[data-font-size="large"] .item-name {
  font-size: 17px;
}

[data-font-size="large"] .item-qty {
  font-size: 18px;
}

[data-font-size="x-large"] {
  font-size: 20px;
}

[data-font-size="x-large"] .order-number,
[data-font-size="x-large"] .order-ticket-number {
  font-size: 30px;
}

[data-font-size="x-large"] .order-timer {
  font-size: 28px;
}

[data-font-size="x-large"] .item-name {
  font-size: 19px;
}

[data-font-size="x-large"] .item-qty {
  font-size: 20px;
}

[data-font-size="x-large"] .kds-header-title {
  font-size: 24px;
}

body {
  background: var(--kds-bg);
  color: var(--kds-text);
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  min-height: 100vh;
  margin: 0;
  padding: 0;
  overflow: hidden;
}

/* =============================================
   SCREENS
   ============================================= */

.kds-screen {
  position: fixed;
  inset: 0;
  display: flex;
  flex-direction: column;
}

.kds-screen.hidden {
  display: none;
}

/* =============================================
   REGISTRATION SCREEN
   ============================================= */

#registration-screen {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  align-items: center;
  justify-content: center;
}

.registration-card {
  background: white;
  border-radius: 16px;
  padding: 48px;
  max-width: 400px;
  width: 90%;
  text-align: center;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

.registration-logo {
  width: 64px;
  height: 64px;
  margin-bottom: 24px;
}

.registration-title {
  font-size: 24px;
  font-weight: 700;
  color: #1f2937;
  margin-bottom: 8px;
}

.registration-subtitle {
  font-size: 14px;
  color: #6b7280;
  margin-bottom: 32px;
}

.registration-input {
  width: 100%;
  padding: 16px;
  font-size: 24px;
  font-weight: 600;
  text-align: center;
  letter-spacing: 4px;
  border: 2px solid #e5e7eb;
  border-radius: 12px;
  text-transform: uppercase;
  margin-bottom: 16px;
  box-sizing: border-box;
}

.registration-input:focus {
  outline: none;
  border-color: var(--kds-primary);
  box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.1);
}

.registration-input::placeholder {
  letter-spacing: 2px;
  color: #9ca3af;
}

.registration-error {
  background: #fef2f2;
  color: #dc2626;
  padding: 12px;
  border-radius: 8px;
  font-size: 14px;
  margin-bottom: 16px;
}

.registration-submit {
  width: 100%;
  padding: 16px;
  font-size: 16px;
  font-weight: 600;
  color: white;
  background: var(--kds-primary);
  border: none;
  border-radius: 12px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: background-color 0.2s;
}

.registration-submit:hover:not(:disabled) {
  background: var(--kds-primary-hover);
}

.registration-submit:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

/* =============================================
   LOADING SCREEN
   ============================================= */

#loading-screen {
  background: var(--kds-bg);
  align-items: center;
  justify-content: center;
}

.loading-content {
  text-align: center;
}

.loading-spinner {
  width: 48px;
  height: 48px;
  border: 4px solid var(--kds-border);
  border-top-color: var(--kds-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 0 auto 24px;
}

.loading-text {
  font-size: 18px;
  color: var(--kds-text-muted);
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* =============================================
   ERROR SCREEN
   ============================================= */

#error-screen {
  background: var(--kds-bg);
  align-items: center;
  justify-content: center;
}

.error-content {
  text-align: center;
  max-width: 400px;
}

.error-icon {
  width: 64px;
  height: 64px;
  color: var(--timer-critical);
  margin-bottom: 24px;
}

.error-title {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 8px;
}

.error-message {
  color: var(--kds-text-muted);
  margin-bottom: 24px;
}

.error-btn {
  padding: 12px 24px;
  font-size: 16px;
  font-weight: 600;
  color: white;
  background: var(--kds-primary);
  border: none;
  border-radius: 8px;
  cursor: pointer;
}

/* =============================================
   DISPLAY SCREEN - HEADER
   ============================================= */

#display-screen {
  background: var(--kds-bg);
}

.kds-header {
  background: var(--kds-surface);
  border-bottom: 1px solid var(--kds-border);
  padding: 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
}

.kds-header-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.kds-logo {
  width: 40px;
  height: 40px;
}

.kds-header-title {
  font-size: 20px;
  font-weight: 700;
}

.kds-header-subtitle {
  font-size: 13px;
  color: var(--kds-text-muted);
}

.kds-header-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.header-btn {
  padding: 10px;
  background: transparent;
  border: 1px solid var(--kds-border);
  border-radius: 8px;
  color: var(--kds-text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}

.header-btn:hover {
  background: var(--kds-surface-hover);
  color: var(--kds-text);
}

.header-btn.sound-off {
  color: var(--timer-critical);
}

.header-btn i {
  width: 20px;
  height: 20px;
}

/* =============================================
   STATION TABS
   ============================================= */

.station-tabs-container {
  background: var(--kds-surface);
  border-bottom: 1px solid var(--kds-border);
  padding: 12px 24px;
  overflow-x: auto;
  flex-shrink: 0;
}

#station-tabs {
  display: flex;
  flex-direction: row;
  gap: 8px;
  flex-wrap: nowrap;
}

.station-tab {
  padding: 8px 16px;
  background: transparent;
  border: 1px solid var(--kds-border);
  border-radius: 8px;
  color: var(--kds-text-muted);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
  transition: all 0.2s;
}

.station-tab:hover {
  background: var(--kds-surface-hover);
  color: var(--kds-text);
}

.station-tab.active {
  background: var(--kds-primary);
  border-color: var(--kds-primary);
  color: white;
}

.station-count {
  background: rgba(255, 255, 255, 0.2);
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 600;
}

.station-tab:not(.active) .station-count {
  background: var(--kds-border);
}

/* =============================================
   ORDERS CONTAINER
   ============================================= */

.orders-main {
  flex: 1;
  overflow: auto;
  padding: 24px;
}

.orders-container {
  --cols-mobile: 1;
  --cols-tablet: 2;
  --cols-desktop: 4;
  --cols-large: 5;
}

/* Grid layout */
.layout-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(var(--cols-mobile), 1fr);
}

@media (min-width: 640px) {
  .layout-grid {
    grid-template-columns: repeat(var(--cols-tablet), 1fr);
  }
}

@media (min-width: 1024px) {
  .layout-grid {
    grid-template-columns: repeat(var(--cols-desktop), 1fr);
  }
}

@media (min-width: 1440px) {
  .layout-grid {
    grid-template-columns: repeat(var(--cols-large), 1fr);
  }
}

/* List layout */
.layout-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 600px;
}

/* Queue layout */
.layout-queue {
  display: flex;
  gap: 16px;
  overflow-x: auto;
  padding-bottom: 16px;
}

.layout-queue .order-card {
  min-width: 300px;
  flex-shrink: 0;
}

/* Timeline layout */
.layout-timeline {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* =============================================
   ORDER CARDS
   ============================================= */

.order-card {
  background: var(--kds-surface);
  border: 1px solid var(--kds-border);
  border-radius: 12px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all 0.2s;
}

/* Card sizes */
.card-compact {
  padding: 12px;
}

.card-standard {
  padding: 16px;
}

.card-detailed {
  padding: 20px;
}

/* Status borders */
.order-card.status-new {
  border-left: 4px solid var(--status-new);
}

.order-card.status-in_progress,
.order-card.status-in-progress {
  border-left: 4px solid var(--status-in-progress);
}

.order-card.status-ready {
  border-left: 4px solid var(--status-ready);
  background: rgba(16, 185, 129, 0.05);
}

/* Priority backgrounds */
.order-card.priority-rush {
  background: var(--color-red);
}

.order-card.priority-vip {
  background: var(--color-purple);
}

/* Color coding backgrounds */
.order-card.color-red { background: var(--color-red); }
.order-card.color-orange { background: var(--color-orange); }
.order-card.color-yellow { background: var(--color-yellow); }
.order-card.color-green { background: var(--color-green); }
.order-card.color-blue { background: var(--color-blue); }
.order-card.color-purple { background: var(--color-purple); }
.order-card.color-pink { background: var(--color-pink); }
.order-card.color-sky { background: var(--color-sky); }
.order-card.color-indigo { background: var(--color-indigo); }

/* New order flash */
.order-card.order-new {
  animation: order-flash 0.5s ease-in-out 3;
}

@keyframes order-flash {
  0%, 100% { box-shadow: 0 0 0 0 rgba(59, 130, 246, 0.7); }
  50% { box-shadow: 0 0 20px 10px rgba(59, 130, 246, 0.3); }
}

/* =============================================
   ORDER HEADER
   ============================================= */

.order-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.order-number {
  font-size: 24px;
  font-weight: 700;
  color: var(--kds-text);
}

.order-ticket-number {
  font-size: 20px;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  padding: 4px 12px;
  border-radius: 8px;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.order-ticket-name {
  font-size: 22px;
  font-weight: 700;
  color: var(--kds-text);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.order-table {
  background: var(--kds-border);
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 600;
}

.order-customer {
  font-size: 14px;
  font-weight: 600;
  color: var(--kds-text);
  text-transform: uppercase;
}

.order-type {
  font-size: 12px;
  color: var(--kds-text-muted);
  background: var(--kds-border);
  padding: 3px 8px;
  border-radius: 4px;
}

.order-priority {
  font-size: 12px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 6px;
}

.priority-badge-rush {
  background: var(--priority-rush);
  color: white;
}

.priority-badge-vip {
  background: var(--priority-vip);
  color: white;
}

.order-timer {
  margin-left: auto;
  font-size: 20px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

/* Timer colors */
.timer-normal {
  color: var(--timer-normal);
}

.timer-warning {
  color: var(--timer-warning);
}

.timer-critical {
  color: var(--timer-critical);
  animation: pulse-critical 1s ease-in-out infinite;
}

@keyframes pulse-critical {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}

/* =============================================
   ORDER ITEMS
   ============================================= */

.order-body {
  flex: 1;
  margin-bottom: 12px;
}

.order-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 10px 0;
  border-bottom: 1px solid var(--kds-border);
}

.order-item:last-child {
  border-bottom: none;
}

.item-status-indicator {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-top: 6px;
  flex-shrink: 0;
}

.item-status-indicator.status-pending {
  background: var(--status-new);
}

.item-status-indicator.status-in_progress,
.item-status-indicator.status-in-progress {
  background: var(--status-in-progress);
}

.item-status-indicator.status-ready {
  background: var(--status-ready);
}

.item-qty {
  font-size: 16px;
  font-weight: 700;
  color: var(--kds-primary);
  min-width: 32px;
}

.item-details {
  flex: 1;
  min-width: 0;
}

.item-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--kds-text);
  line-height: 1.3;
}

.item-customizations {
  font-size: 13px;
  color: #60a5fa;
  margin-top: 4px;
  line-height: 1.4;
}

.item-coffee {
  font-size: 13px;
  color: #38bdf8;
  margin-top: 4px;
  line-height: 1.4;
  font-weight: 500;
}

.item-modifiers {
  font-size: 13px;
  color: #a78bfa;
  margin-top: 4px;
  line-height: 1.4;
}

.item-modifiers-stacked {
  margin-top: 4px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.modifier-item {
  font-size: 13px;
  color: #a78bfa;
  line-height: 1.3;
  padding-left: 8px;
  position: relative;
}

.modifier-item::before {
  content: "•";
  position: absolute;
  left: 0;
  color: #a78bfa;
}

.item-notes {
  font-size: 13px;
  color: var(--timer-warning);
  margin-top: 4px;
  font-weight: 500;
}

.station-badge {
  font-size: 11px;
  font-weight: 600;
  color: white;
  padding: 3px 8px;
  border-radius: 4px;
  text-transform: uppercase;
}

.item-bump-btn {
  padding: 8px;
  background: var(--status-ready);
  border: none;
  border-radius: 6px;
  color: white;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  min-height: 36px;
  transition: all 0.2s;
}

.item-bump-btn:hover {
  transform: scale(1.1);
}

.item-bump-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.item-bump-btn.loading {
  animation: spin 1s linear infinite;
}

.item-bump-btn i {
  width: 18px;
  height: 18px;
}

.item-ready-badge {
  color: var(--status-ready);
  display: flex;
  align-items: center;
}

.item-ready-badge i {
  width: 24px;
  height: 24px;
}

/* =============================================
   ORDER FOOTER / ACTIONS
   ============================================= */

.order-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--kds-border);
}

.order-meta {
  font-size: 12px;
  color: var(--kds-text-muted);
  display: flex;
  gap: 12px;
  align-items: center;
}

.order-device {
  background: var(--kds-border);
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 11px;
  color: var(--kds-text-muted);
}

.order-actions {
  display: flex;
  gap: 8px;
}

.action-btn {
  padding: 10px 16px;
  font-size: 13px;
  font-weight: 600;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all 0.2s;
  min-height: 40px;
}

.action-btn i {
  width: 16px;
  height: 16px;
}

.action-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.action-btn.loading i {
  animation: spin 1s linear infinite;
}

/* Action button colors */
.action-green {
  background: var(--status-ready);
  color: white;
}

.action-green:hover:not(:disabled) {
  background: #059669;
}

.action-blue {
  background: var(--status-new);
  color: white;
}

.action-blue:hover:not(:disabled) {
  background: #2563eb;
}

.action-yellow {
  background: var(--timer-warning);
  color: white;
}

.action-yellow:hover:not(:disabled) {
  background: #d97706;
}

.action-red {
  background: var(--timer-critical);
  color: white;
}

.action-red:hover:not(:disabled) {
  background: #dc2626;
}

.action-orange {
  background: #f97316;
  color: white;
}

.action-orange:hover:not(:disabled) {
  background: #ea580c;
}

.action-purple {
  background: var(--kds-primary);
  color: white;
}

.action-purple:hover:not(:disabled) {
  background: var(--kds-primary-hover);
}

.action-gray {
  background: var(--kds-border);
  color: var(--kds-text);
}

.action-gray:hover:not(:disabled) {
  background: var(--kds-surface-hover);
}

/* =============================================
   EMPTY STATE
   ============================================= */

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 64px 24px;
  color: var(--kds-text-muted);
  min-height: 60vh;
  width: 100%;
  grid-column: 1 / -1; /* Span all columns in grid layout */
}

.empty-icon {
  width: 96px;
  height: 96px;
  margin-bottom: 32px;
  opacity: 0.4;
}

.empty-state h3 {
  font-size: 28px;
  font-weight: 600;
  color: var(--kds-text);
  margin-bottom: 12px;
}

.empty-state p {
  font-size: 16px;
  max-width: 300px;
}

/* =============================================
   COMPLETED ORDERS PANEL
   ============================================= */

#completed-panel {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 400px;
  max-width: 100%;
  background: var(--kds-surface);
  border-left: 1px solid var(--kds-border);
  z-index: 100;
  display: flex;
  flex-direction: column;
  transform: translateX(0);
  transition: transform 0.3s ease;
}

#completed-panel.hidden {
  transform: translateX(100%);
}

.completed-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--kds-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.completed-header h3 {
  font-size: 16px;
  font-weight: 600;
}

.completed-close {
  padding: 8px;
  background: transparent;
  border: none;
  color: var(--kds-text-muted);
  cursor: pointer;
  border-radius: 6px;
}

.completed-close:hover {
  background: var(--kds-border);
  color: var(--kds-text);
}

#completed-orders {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
}

.completed-order {
  background: var(--kds-bg);
  border: 1px solid var(--kds-border);
  border-radius: 8px;
  padding: 12px 16px;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.completed-order-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.completed-order .order-number {
  font-size: 16px;
}

.completed-order .order-time {
  font-size: 12px;
  color: var(--kds-text-muted);
}

.recall-btn {
  padding: 8px 12px;
  font-size: 13px;
  font-weight: 500;
  background: transparent;
  border: 1px solid var(--kds-border);
  border-radius: 6px;
  color: var(--kds-text);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all 0.2s;
}

.recall-btn:hover:not(:disabled) {
  background: var(--timer-warning);
  border-color: var(--timer-warning);
  color: white;
}

.recall-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.recall-btn i {
  width: 14px;
  height: 14px;
}

/* =============================================
   RESPONSIVE ADJUSTMENTS
   ============================================= */

@media (max-width: 640px) {
  .kds-header {
    padding: 12px 16px;
  }

  .kds-header-right {
    gap: 8px;
  }

  .station-tabs-container {
    padding: 12px 16px;
  }

  .orders-main {
    padding: 16px;
  }

  .order-header {
    flex-wrap: wrap;
  }

  .order-number {
    font-size: 20px;
  }

  .order-timer {
    font-size: 18px;
  }

  .action-btn span {
    display: none;
  }

  #completed-panel {
    width: 100%;
  }
}

/* =============================================
   ANIMATIONS
   ============================================= */

.animate-spin {
  animation: spin 1s linear infinite;
}

/* Touch optimization */
@media (pointer: coarse) {
  .action-btn {
    min-height: 48px;
    min-width: 48px;
  }

  .item-bump-btn {
    min-width: 48px;
    min-height: 48px;
  }

  .station-tab {
    min-height: 44px;
  }
}

/* =============================================
   SETTINGS PANEL
   ============================================= */

#settings-panel {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 420px;
  max-width: 100%;
  background: var(--kds-surface);
  border-left: 1px solid var(--kds-border);
  z-index: 200;
  display: flex;
  flex-direction: column;
  transform: translateX(0);
  transition: transform 0.3s ease;
  overflow: hidden;
}

#settings-panel.hidden {
  transform: translateX(100%);
}

.settings-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--kds-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
}

.settings-header h3 {
  font-size: 18px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
}

.settings-header h3 i {
  width: 20px;
  height: 20px;
  color: var(--kds-primary);
}

.settings-close {
  padding: 8px;
  background: transparent;
  border: none;
  color: var(--kds-text-muted);
  cursor: pointer;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.settings-close:hover {
  background: var(--kds-border);
  color: var(--kds-text);
}

.settings-close i {
  width: 20px;
  height: 20px;
}

.settings-body {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
}

.settings-section {
  margin-bottom: 28px;
}

.settings-section:last-child {
  margin-bottom: 0;
}

.settings-section-title {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--kds-text-muted);
  margin-bottom: 12px;
}

/* Theme selector */
.theme-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}

.theme-btn {
  padding: 12px 8px;
  background: var(--kds-bg);
  border: 2px solid var(--kds-border);
  border-radius: 10px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  transition: all 0.2s;
}

.theme-btn:hover {
  border-color: var(--kds-primary);
}

.theme-btn.active {
  border-color: var(--kds-primary);
  background: rgba(139, 92, 246, 0.1);
}

.theme-btn i {
  width: 24px;
  height: 24px;
}

.theme-btn span {
  font-size: 11px;
  font-weight: 500;
}

/* Layout selector */
.layout-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin-bottom: 16px;
}

.layout-btn {
  padding: 12px 8px;
  background: var(--kds-bg);
  border: 2px solid var(--kds-border);
  border-radius: 10px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  transition: all 0.2s;
}

.layout-btn:hover {
  border-color: var(--kds-primary);
}

.layout-btn.active {
  border-color: var(--kds-primary);
  background: rgba(139, 92, 246, 0.1);
}

.layout-btn i {
  width: 24px;
  height: 24px;
}

.layout-btn span {
  font-size: 11px;
  font-weight: 500;
}

/* Settings row */
.settings-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.settings-row:last-child {
  margin-bottom: 0;
}

.settings-label {
  font-size: 14px;
  color: var(--kds-text);
}

.settings-value {
  font-size: 14px;
  color: var(--kds-text-muted);
  font-weight: 500;
}

/* Slider input */
.settings-slider {
  display: flex;
  align-items: center;
  gap: 12px;
}

.settings-slider input[type="range"] {
  width: 120px;
  height: 6px;
  -webkit-appearance: none;
  appearance: none;
  background: var(--kds-border);
  border-radius: 3px;
  cursor: pointer;
}

.settings-slider input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  background: var(--kds-primary);
  border-radius: 50%;
  cursor: pointer;
}

.settings-slider input[type="range"]::-moz-range-thumb {
  width: 18px;
  height: 18px;
  background: var(--kds-primary);
  border-radius: 50%;
  cursor: pointer;
  border: none;
}

/* Number input */
.settings-number {
  width: 60px;
  padding: 6px 10px;
  background: var(--kds-bg);
  border: 1px solid var(--kds-border);
  border-radius: 6px;
  color: var(--kds-text);
  font-size: 14px;
  text-align: center;
}

.settings-number:focus {
  outline: none;
  border-color: var(--kds-primary);
}

/* Select dropdown */
.settings-select {
  padding: 8px 12px;
  background: var(--kds-bg);
  border: 1px solid var(--kds-border);
  border-radius: 6px;
  color: var(--kds-text);
  font-size: 14px;
  cursor: pointer;
  min-width: 120px;
}

.settings-select:focus {
  outline: none;
  border-color: var(--kds-primary);
}

/* Toggle switch */
.toggle-switch {
  position: relative;
  width: 44px;
  height: 24px;
  background: var(--kds-border);
  border-radius: 12px;
  cursor: pointer;
  transition: background-color 0.2s;
}

.toggle-switch.active {
  background: var(--kds-primary);
}

.toggle-switch::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 20px;
  height: 20px;
  background: white;
  border-radius: 50%;
  transition: transform 0.2s;
}

.toggle-switch.active::after {
  transform: translateX(20px);
}

/* Radio button group */
.radio-group {
  display: flex;
  gap: 16px;
}

.radio-option {
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
}

.radio-option input {
  display: none;
}

.radio-dot {
  width: 18px;
  height: 18px;
  border: 2px solid var(--kds-border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}

.radio-option input:checked + .radio-dot {
  border-color: var(--kds-primary);
}

.radio-dot::after {
  content: '';
  width: 10px;
  height: 10px;
  background: var(--kds-primary);
  border-radius: 50%;
  opacity: 0;
  transition: opacity 0.2s;
}

.radio-option input:checked + .radio-dot::after {
  opacity: 1;
}

.radio-label {
  font-size: 13px;
  color: var(--kds-text);
}

/* Color picker */
.color-picker-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}

.color-picker-row:last-child {
  margin-bottom: 0;
}

.color-picker-label {
  flex: 1;
  font-size: 13px;
  color: var(--kds-text);
}

.color-picker-input {
  width: 36px;
  height: 28px;
  padding: 2px;
  background: var(--kds-bg);
  border: 1px solid var(--kds-border);
  border-radius: 4px;
  cursor: pointer;
}

.color-picker-input::-webkit-color-swatch-wrapper {
  padding: 0;
}

.color-picker-input::-webkit-color-swatch {
  border: none;
  border-radius: 2px;
}

/* Custom colors toggle */
.custom-colors-toggle {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--kds-border);
  cursor: pointer;
}

.custom-colors-toggle span {
  font-size: 13px;
  color: var(--kds-text-muted);
}

.custom-colors-panel {
  margin-top: 16px;
  padding: 12px;
  background: var(--kds-bg);
  border-radius: 8px;
}

.custom-colors-panel.hidden {
  display: none;
}

/* Sound row */
.sound-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 0;
  border-bottom: 1px solid var(--kds-border);
}

.sound-row:last-child {
  border-bottom: none;
}

.sound-row-label {
  flex: 1;
  font-size: 13px;
  color: var(--kds-text);
}

.sound-row-toggle {
  margin-right: 8px;
}

.sound-row-select {
  width: 100px;
  padding: 6px 8px;
  background: var(--kds-bg);
  border: 1px solid var(--kds-border);
  border-radius: 4px;
  color: var(--kds-text);
  font-size: 12px;
}

.sound-test-btn {
  padding: 6px 10px;
  background: transparent;
  border: 1px solid var(--kds-border);
  border-radius: 4px;
  color: var(--kds-text-muted);
  font-size: 12px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 4px;
}

.sound-test-btn:hover {
  background: var(--kds-border);
  color: var(--kds-text);
}

.sound-test-btn i {
  width: 12px;
  height: 12px;
}

/* Settings footer */
.settings-footer {
  padding: 16px 20px;
  border-top: 1px solid var(--kds-border);
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-shrink: 0;
}

.settings-reset-btn {
  padding: 10px 16px;
  background: transparent;
  border: 1px solid var(--kds-border);
  border-radius: 8px;
  color: var(--kds-text-muted);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}

.settings-reset-btn:hover {
  background: var(--kds-border);
  color: var(--kds-text);
}

.settings-save-btn {
  flex: 1;
  padding: 10px 24px;
  background: var(--kds-primary);
  border: none;
  border-radius: 8px;
  color: white;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: all 0.2s;
}

.settings-save-btn:hover:not(:disabled) {
  background: var(--kds-primary-hover);
}

.settings-save-btn:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

.settings-save-btn i {
  width: 16px;
  height: 16px;
}

/* Settings panel responsive */
@media (max-width: 480px) {
  #settings-panel {
    width: 100%;
  }

  .theme-grid,
  .layout-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ==========================================
   MOBILE UX IMPROVEMENTS
   ========================================== */

/* Safe area padding for notched devices */
@supports (padding: max(0px)) {
  .kds-header {
    padding-left: max(16px, env(safe-area-inset-left));
    padding-right: max(16px, env(safe-area-inset-right));
  }

  .orders-main {
    padding-left: env(safe-area-inset-left);
    padding-right: env(safe-area-inset-right);
  }

  .station-tabs-container {
    padding-left: env(safe-area-inset-left);
    padding-right: env(safe-area-inset-right);
  }

  #settings-panel {
    padding-bottom: env(safe-area-inset-bottom);
  }

  #completed-panel {
    padding-bottom: env(safe-area-inset-bottom);
  }
}

/* Prevent iOS zoom on input focus */
input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="tel"],
input[type="search"],
select,
textarea {
  font-size: 16px !important;
}

/* Touch-friendly header buttons - critical for kitchen use */
.header-btn {
  min-width: 48px !important;
  min-height: 48px !important;
  padding: 12px !important;
}

.header-btn i {
  width: 24px;
  height: 24px;
}

/* Station tabs - larger touch targets */
.station-tab {
  min-height: 48px;
  padding: 12px 20px;
}

/* Order card item bump buttons - critical for kitchen */
.item-bump-btn,
.order-card .item button {
  min-width: 44px;
  min-height: 44px;
  padding: 10px;
}

/* Order bump button - large target for busy kitchen */
.bump-btn,
.order-bump-btn {
  min-height: 56px;
  padding: 14px 20px;
  font-size: 16px;
}

/* Completed panel close button */
.completed-close {
  min-width: 44px;
  min-height: 44px;
}

/* Settings buttons */
.settings-reset-btn,
.settings-save-btn {
  min-height: 48px;
}

/* Touch feedback */
.header-btn:active,
.station-tab:active,
.bump-btn:active,
.order-bump-btn:active {
  transform: scale(0.97);
  transition: transform 0.1s ease;
}

/* Smooth scrolling */
.orders-container,
.station-tabs-container,
#completed-orders {
  -webkit-overflow-scrolling: touch;
  scroll-behavior: smooth;
}

/* ==========================================
   TABLET LAYOUT (1024px and below)
   ========================================== */

@media (max-width: 1024px) {
  /* Reduce grid columns on tablet */
  .orders-container.layout-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
  }

  /* Slightly larger fonts for readability */
  .order-card .item-name {
    font-size: 15px;
  }

  .order-card .item-modifier {
    font-size: 13px;
  }
}

/* ==========================================
   SMALL TABLET / LARGE PHONE (768px and below)
   ========================================== */

@media (max-width: 768px) {
  /* Two column grid */
  .orders-container.layout-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    padding: 10px;
  }

  /* Compact header */
  .kds-header {
    padding: 10px 12px;
  }

  .kds-logo {
    width: 32px;
    height: 32px;
  }

  .kds-header-title {
    font-size: 16px;
  }

  .kds-header-subtitle {
    font-size: 11px;
  }

  /* Hide version on mobile */
  #kds-version {
    display: none;
  }

  /* Horizontal scrolling station tabs */
  .station-tabs-container {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  #station-tabs {
    flex-wrap: nowrap;
    gap: 6px;
  }

  .station-tab {
    flex-shrink: 0;
    padding: 10px 16px;
    font-size: 13px;
  }

  /* Order cards */
  .order-card {
    padding: 12px;
  }

  .order-card .order-header {
    padding-bottom: 8px;
  }

  .order-card .order-number {
    font-size: 18px;
  }

  .order-card .item-name {
    font-size: 14px;
  }

  /* Full width panels */
  #settings-panel,
  #completed-panel {
    width: 100% !important;
  }

  /* Settings footer stack on mobile */
  .settings-footer {
    flex-direction: column-reverse;
  }

  .settings-footer button {
    width: 100%;
  }
}

/* ==========================================
   PHONE PORTRAIT (480px and below)
   ========================================== */

@media (max-width: 480px) {
  /* Single column for orders */
  .orders-container.layout-grid {
    grid-template-columns: 1fr;
    gap: 8px;
    padding: 8px;
  }

  /* Even more compact header */
  .kds-header {
    padding: 8px 10px;
    gap: 8px;
  }

  .kds-header-left {
    gap: 8px;
  }

  /* Smaller header buttons but still touchable */
  .header-btn {
    min-width: 44px !important;
    min-height: 44px !important;
    padding: 10px !important;
  }

  .header-btn i {
    width: 20px;
    height: 20px;
  }

  /* More compact station tabs */
  .station-tab {
    padding: 8px 12px;
    font-size: 12px;
    min-height: 44px;
  }

  /* Order cards more compact */
  .order-card {
    padding: 10px;
  }

  .order-card .item-name {
    font-size: 13px;
  }

  .order-card .item-modifier {
    font-size: 11px;
  }

  /* Larger bump button - still easy to hit */
  .bump-btn,
  .order-bump-btn {
    min-height: 52px;
    font-size: 15px;
  }

  /* Registration screen adjustments */
  .registration-card {
    padding: 24px 20px;
    margin: 16px;
  }

  .registration-title {
    font-size: 24px;
  }

  .registration-input {
    font-size: 20px;
    padding: 14px 16px;
  }

  .registration-submit {
    min-height: 52px;
  }
}

/* ==========================================
   LANDSCAPE PHONE OPTIMIZATION
   ========================================== */

@media (max-height: 500px) and (orientation: landscape) {
  /* Use horizontal layout in landscape */
  .orders-container.layout-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
  }

  /* Compact header in landscape */
  .kds-header {
    padding: 6px 12px;
  }

  .kds-logo {
    width: 28px;
    height: 28px;
  }

  .kds-header-title {
    font-size: 14px;
  }

  /* Minimal station tabs */
  .station-tab {
    padding: 6px 12px;
    min-height: 40px;
  }

  /* More compact order cards */
  .order-card {
    padding: 8px;
  }

  .bump-btn,
  .order-bump-btn {
    min-height: 44px;
    padding: 10px 16px;
    font-size: 14px;
  }
}

/* ==========================================
   ACCESSIBILITY
   ========================================== */

/* Focus visible for keyboard navigation */
button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
.station-tab:focus-visible {
  outline: 2px solid var(--kds-primary);
  outline-offset: 2px;
}

/* Reduced motion preference */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}